Firmware Intern interview practice at Ninetynine Labs
25 questions · 45 minutes · ₹25
Practice for the Firmware Intern opening at Ninetynine Labs: questions from its job description on C/C++, ESP32, Communication protocols, Debugging, and on your CV.
What it covers
- C/C++
- ESP32
- Communication protocols
- Debugging
- ESP-IDF
- FreeRTOS
- MQTT
- CAN
- RS485
- Git
- Firmware Intern fundamentals
- Projects on your CV
Interview format
- Questions: 25 questions — 15 multiple choice, 4 predict-the-output, 4 short answer, 2 from your CV
- Time: 45 minutes, timed from the first question
- Difficulty: Beginner
- Skill area: DevOps & cloud
- Price: ₹25 a test
How Ninetynine Labs interviews
The engineering interviews likely focus on systems and fundamentals, particularly in embedded systems, firmware development, and hardware design. Candidates are expected to demonstrate knowledge of communication protocols, microcontroller programming, and hardware debugging.
Frequently asked questions
- How many questions are in the Firmware Intern test?
- 25 questions (15 multiple choice, 4 predict-the-output, 4 short answer, 2 from your CV), with 45 minutes to answer them.
- What does the Firmware Intern test cover?
- C/C++, ESP32, Communication protocols, Debugging, ESP-IDF, FreeRTOS, MQTT, CAN, RS485, Git, Firmware Intern fundamentals, Projects on your CV.
- Is the Firmware Intern test free?
- It costs ₹25 a test, paid per test with no subscription. Prices in Indian rupees (INR).
- What level is the Firmware Intern test?
- Beginner, in DevOps & cloud.
- How does Ninetynine Labs interview?
- The engineering interviews likely focus on systems and fundamentals, particularly in embedded systems, firmware development, and hardware design. Candidates are expected to demonstrate knowledge of communication protocols, microcontroller programming, and hardware debugging.